Merge "Call setCanAffectSystemUiFlags(false) only for PiP" into tm-qpr-dev am: bf8528c21b am: b6e6511bb3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18815765

Change-Id: Ib3525c4eb71f4e13094881ad688d93085ec3e9e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>